Seeking Recommendation Good books on Tree of Death Kabbalah?

[Accipeveldare]

I have been interested in Kabbalah for some time now. I have practiced many different paths throughout my journey. Most notably the Tree of Life and am currently going through Peter J Carrols syllabus. However, the Tree of Death has always peaked my interest.

 

[Milton]

I will assume you have Hermetic Kabbalah in mind as Jewish sources assume Zohar prerequisites.

Qabalah, Qliphoth and Goetic Magic by Thomas Karlsson is a decent introduction.
Kenneth Grant expanded on the subject and wrote quite a bit.
The infamous Book of Sitra Achra.
And of the books that is actually on my reading list, The Tree of Evil by William G. Gray.

Keep in mind that that these authors are biased to their very own tradition. Each of them included their own unique perspective when writing about the Klipot.

Recently, AD Mercer wrote a book on the subject called Sefer Ha Sitra Achra. It may serve as "pure" introduction to the topic. I am not sure as I didn't look through the book. Jewish sources are the only true "authentic" reference when it comes to this topic and not much is translated.

I would disregard all other "modern" books addressing the subject due to the "edginess".